[  519.434020] netdevsim netdevsim683 eni683np1: renamed from eth1
[  519.531484] netdevsim netdevsim264 eni264np1: renamed from eth0
[  519.778434] Could not find device with ifindex 2000 in netnsfd 11
[  519.778702] Could not find netns with fd: 2000
[  519.778853] Cannot link a netdevsim to itself
[  519.779021] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).